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Traffic heat map of Douglas County, Colorado: 850 miles of roads shaded from blue (light) to red (heavy traffic), busiest on CO 470 and I 25

Douglas County, Colorado Traffic Counts

How busy are the roads of Douglas County, Colorado? We measure 850 road miles, divided into 14,834 segments, with multi-sourced, cross-verified mobile and sensor data. Its drivers come from the highest-income neighborhoods of any county in Colorado, averaging $147,999. The breakdown below covers volume, trucks, congestion and driver profiles for retailers, logistics planners and engineers.
Data sourced from TrafficZoom's proprietary analytics platform.
Data current as of:
Q3 2026
Updated:
September 29, 2026
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Total Traffic Volume & Performance in Douglas County, Colorado

Traffic

The average number of vehicles that travel each day over any road in the road network.

vehicles per day6,614
Trucks

The percentage of the total traffic volume composed of heavy vehicles.

6.9%
Average travel time

The average time of travel averaged among all vehicles traveling on the road network.

30.9 min
Congestion ratio

The rate at which the actual travel time exceeds free-flow travel time, averaged among all roads in the network.

16.0%
Drivers’ average age

Average age of residents in the geographic areas where the vehicle trips originated.

44.8 yrs
Drivers’ average income

Average income of residents in the geographic areas where the vehicle trips originated.

$147,999

Our data shows 6,614 vehicles per day on the average road in Douglas County, Colorado, and 8,581,070 vehicle-miles traveled per day (≈3.1 billion per year) across its 850 miles of monitored roads. Trucks are a smaller part of the mix than across Colorado: 6.9% against 8.4%.

Busier roads than 86% of counties in Colorado

The average road in Douglas carries 6,614 vehicles per day, essentially matching the state average of 6,752. In total volume terms, its road network carries about 6.8% of Colorado's statewide total of vehicle-miles. By volume, Douglas's 6,614 vehicles per day outpaces 86% of counties in Colorado.

The average trip takes 30.9 minutes, 7% lower than the state level. 71% of counties in Colorado have a longer average travel time than Douglas's 30.9 minutes.

The congestion ratio of 16.0% is in line with the state level.

Highway vs. Non-Highway Traffic Analysis

highway traffic icon

Highway Traffic in Douglas County, Colorado

Trafficvehicles per day20,304
Trucks8.8%
Average travel time39.0 min
Congestion ratio32.7%
Drivers’ average age44.6 yrs
Drivers’ average income$140,424

Highways carry more than half of all travel in Douglas County, Colorado (57% of vehicle-miles). The average highway carries 20,304 vehicles per day, 281% more than the average non-highway road in the same area, which carries 5,331 vehicles per day.

Highways make up 22% of the monitored road miles (188 miles, 1,271 segments), so they carry more than their share: 4,912,989 vehicle-miles traveled per day (≈1.8 billion per year).

No more than 4 other counties in Colorado move more traffic on their highways.

More highway trucks than 91% of counties in Colorado

Highway truck concentration here runs 22% lower than the state average, at 8.8%. Trucks are a small share of a very large highway flow, so Douglas still moves heavy freight volumes alongside its passenger traffic.

74% of counties in Colorado see a higher highway truck share than Douglas's 8.8%. By raw truck volume, Douglas carries more highway trucks than 91% of counties in Colorado.

non-highway traffic icon

Non-highway Traffic in Douglas County, Colorado

Trafficvehicles per day5,331
Trucks4.3%
Average travel time30.2 min
Congestion ratio14.4%
Drivers’ average age45.1 yrs
Drivers’ average income$154,386

Local roads carry a significant share of travel in Douglas County, Colorado: 43% of all vehicle-miles. On the average non-highway road, that comes to 5,331 vehicles per day.

Spread over 662 miles and 13,563 segments, 78% of the road network, local roads carry a lighter load per mile: 3,668,081 vehicle-miles traveled per day (≈1.3 billion per year). Trucks make up 4.3% of non-highway traffic, about 1 in 23 vehicles.

The highest driver income of any county in Colorado

The concentration of trucks on non-highway roads is 51% lower than on highways.

At 14.4%, the non-highway congestion ratio matches the state level closely.

Trips here originate from the highest average driver income in Colorado, at $147,999. 73% of counties in Colorado have an older driver population than Douglas.

Time-of-Day & Seasonal Patterns

peak hours icon
Peak Traffic Windows
Weekday peaks:
A long morning plateau from 7:00 AM to 12:00 PM and PM peak 3:00 PM–6:00 PM, with volumes reaching approximately 102% higher than the daily average.
Weekend traffic:
Weekend traffic is about as busy as on weekdays (-3%): leisure and through trips largely replace the commute.
seasonal traffic icon
Seasonal Fluctuation
Busy season:
June–August is the high season, with volumes +12% versus the annual average.
Lowest month:
January is the quietest month, with volumes -19% versus the annual average - the usual winter low.

Data Finding: Hourly & Seasonal Patterns

In Douglas County, Colorado, the peak hour concentrates about 8% of the day's traffic, and there is a strong seasonal swing of +12% in high season.

Douglas County vs. Colorado Traffic Comparison

The highway truck share sets Douglas County apart: 22% below the Colorado average. Its truck share is also 18% below.

MetricDouglas CountyColorado averageDifference
Traffic6,6146,752-2.0%
Truck % (Total Traffic)6.9%8.4%-18.1%
Truck % (Highway)8.8%11.2%-21.6%
Avg. Travel Time30.9 min33.2 min-6.8%

How Douglas County compares

Douglas County against nearby counties

Nothing in this table sets Douglas County sharply apart from the 4 areas nearest to it, though it has the third busiest roads of the five. The same kind of road, simply more of it: traffic per road matches the areas around it while the network itself is larger.

Douglas County and the 4 nearest county-level areas by centroid distance, with the Colorado average for scale.
AreaAverage daily trafficTruck shareDaily vehicle-milesAverage travel timeCongestion ratio
Douglas County6,6146.9%8,581,07030.9 min16.0%
Jefferson County, Colorado8,2315.9%10,806,93633.4 min17.1%
Teller County, Colorado3,4297.7%385,14031.1 min11.6%
Denver County, Colorado9,5126.3%13,746,46834.5 min19.7%
Elbert County, Colorado2,96418.1%805,94229.2 min9.9%
Colorado average6,7528.4%N/A33.2 min15.7%

Douglas County ranked within Colorado

On average driver income, Douglas County tops the Colorado field outright.

Douglas County ranked among 64 county-level areas in Colorado (1 = highest); measures without data in every county rank a smaller field, down to 54.
MeasureDouglas CountyColorado rank
Traffic volume (AADT)6,614#10 of 64
Highway vehicle-miles per day4,912,989#4 of 54
Truck share on highways8.8%#40 of 54
Highway trucks per day1,791#6 of 54
Average travel time30.9 min#46 of 64
Average driver income$147,999#1 of 64
Average driver age44.8 yrs#47 of 64

Busiest roads in Douglas County, Colorado

On their busiest stretches, the three busiest roads in Douglas County carry 70,960 vehicles a day on average, 10.7 times the typical road in the county (6,614).

CO 470 is the busiest road, at 86,538 vehicles a day, 4,863 of them trucks (5.6%). I 25 carries the most trucks, 9,149 a day (11.0% of its traffic), although it ranks #2 for all traffic.

I 25 carries longer journeys than most roads here, with a median trip of 45.4 minutes against 30.9 county-wide.

Ranked by daily traffic (AADT)

Cars and light vehiclesTrucks
1CO 470Motorway · 86,538vehicles4,863trucks · 5.6%
Road class
Motorway
Congestion ratio
82.6%
Median trip time
34.5 min
Drivers’ median age
45.7 yrs
Drivers’ average income
$141,777

Travel on CO 470's busiest stretch runs 83% over free-flow time, against 16% across the county, so expect slower peak hours.

2I 25Motorway · 83,444vehicles9,149trucks · 11.0%
Road class
Motorway
Congestion ratio
54.1%
Median trip time
45.4 min
Drivers’ median age
44.0 yrs
Drivers’ average income
$135,761

I 25 is one of the more congested roads here: trips take 54% longer than at free-flow speed, against 16% county-wide.

3Parker RoadTrunk road · 42,900vehicles2,302trucks · 5.4%
Road class
Trunk road
Congestion ratio
35.5%
Median trip time
35.9 min
Drivers’ median age
44.2 yrs
Drivers’ average income
$143,181

Parker Road is a trunk route for the county, carrying 6.5 times the county average on its busiest stretch; trucks are 5.4% of it, below the county-wide 6.9%.

4Quebec StreetPrimary road · 41,897vehicles1,278trucks · 3.0%
Road class
Primary road
Congestion ratio
29.5%
Median trip time
28.7 min
Drivers’ median age
45.8 yrs
Drivers’ average income
$158,932

Quebec Street carries 6.3 times the county average at its busiest, 1,278 of them trucks (3.0%, below the county-wide 6.9%).

5South BroadwayPrimary road · 40,993vehicles1,552trucks · 3.8%
Road class
Primary road
Congestion ratio
44.1%
Median trip time
32.6 min
Drivers’ median age
46.9 yrs
Drivers’ average income
$157,382

South Broadway carries 6.2 times the county average on its busiest stretch, where the median trip lasts 32.6 minutes.

Ranked by trucks per day

Cars and light vehiclesTrucks
1I 25Motorway · #2 by traffic83,444vehicles9,149trucks · 11.0%
2CO 470Motorway · #1 by traffic86,538vehicles4,863trucks · 5.6%
3E470Motorway · 37,854vehicles2,716trucks · 7.2%
Road class
Motorway
Congestion ratio
28.6%
Median trip time
35.8 min
Drivers’ median age
44.1 yrs
Drivers’ average income
$144,356

At 5.7 times the county average, E470 draws drivers from neighborhoods averaging $144,356 in household income.

4Parker RoadTrunk road · #3 by traffic42,900vehicles2,302trucks · 5.4%
5South BroadwayPrimary road · #5 by traffic40,993vehicles1,552trucks · 3.8%
How to read these road counts
  • The first number is AADT, annual average daily traffic: the vehicles passing a point on an average day, both directions combined and trucks included. On a divided highway both carriageways are added together.
  • Traffic changes along a road, with more near interchanges and towns and less in open country. Every figure for a road describes its busiest stretch in the county, so the two rankings show the same numbers for the same road.
  • The second number is the trucks on that stretch, a part of its AADT. The bar splits the AADT into cars and light vehicles (blue) and trucks (amber).
  • See segment-level AADT for any road on TrafficZoom.

Data Sources & Methodology

The data presented on this page is derived from TrafficZoom's proprietary analytics platform, which aggregates and normalizes information from multiple sources, including:

Mobile device location data (anonymized and aggregated)

Road sensor networks and traffic counters

Historical traffic pattern databases

Public traffic count programs published by the

DouglasDepartment of Transportation

Demographic Baseline for O-D Modeling

U.S. Census Bureau
All metrics represent estimates based on statistical modeling and are intended for strategic planning purposes.
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Data current as of:
Q3 2026

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Counties near Douglas County

The same traffic breakdown for the areas closest to Douglas County, Colorado.

Need segment-level traffic data?

Identify traffic patterns street by street and analyze the exact corridors that matter to your project.